<template>
  <div class="type-nav">
    <div class="container">
      <div class="nav-left" @mouseleave="handlerSeleave">
        <h2 class="all" @mouseenter="isShowNav=true" >全部商品分类</h2>
        <div class="sort" v-show="isShowNav">
          <div class="all-sort-list2" @click.prevent="toSearch">
						<!-- 一级分类 -->
            <div class="item" v-for="c1 in categoryList" :key="c1.categoryId">
              <h3>
                <a :data-id="c1.categoryId" data-level="1">{{c1.categoryName}}</a>
              </h3>
              <div class="item-list clearfix">
                <div class="subitem">
									<!-- 二级分类 -->
                  <dl class="fore" v-for="c2 in c1.categoryChild" :key="c2.categoryId">
										<dt>
                      <a :data-id="c2.categoryId" data-level="2">{{c2.categoryName}}</a>
                    </dt>
										<dd>
											<!-- 三级分类 -->
                      <em v-for="c3 in c2.categoryChild" :key="c3.categoryId">
                        <a :data-id="c3.categoryId" data-level="3">{{c3.categoryName}}</a>
                      </em>
                    </dd>
                  </dl>
                </div>
              </div>
            </div>
          </div>
        </div>
      </div>
      <nav class="nav">
        <a href="###">服装城</a>
        <a href="###">美妆馆</a>
        <a href="###">尚品汇超市</a>
        <a href="###">全球购</a>
        <a href="###">闪购</a>
        <a href="###">团购</a>
        <a href="###">有趣</a>
        <a href="###">秒杀</a>
      </nav>
    </div>
  </div>
</template>

<script>
	import {mapState} from 'vuex'

	export default {
		name: "TypeNav",
    data(){
      return{
        isShowNav:false
      }
    },
    methods:{
      toSearch(event){
        // console.log(event.target.innerText)
        const {id,level}=event.target.dataset
        // console.log(id,level) 
        const {innerText}=event.target
        // console.log(innerText)
        
        if(level){
          // console.log(this.$route.query)
          const{keyword}=this.$route.query
          this.$router.push({
          path:'/search',
          query:{
            ['category'+'level'+'Id']:id,
            categoryName:innerText,
            keyword
          } 
        })
        }
        
      },
      handlerSeleave(){
          if(this.$route.path!=='/home'){
          this.isShowNav=false
        }
      }
    },
		computed: {
			...mapState({
				categoryList: state => state.home.categoryList
			})
		},
		mounted() {
			//组件一挂载就分发一个名为getCategoryList的action，用于获取数据（张嘴要数据）
			this.$store.dispatch('getCategoryList')
      if(this.$route.path==='/home'){
        this.isShowNav=true
      }
		},
	};
</script>

<style lang="less" scoped>
.type-nav {
  border-bottom: 2px solid #e1251b;

  .container {
    width: 1200px;
    margin: 0 auto;
    display: flex;
    position: relative;

    .all {
      width: 210px;
      height: 45px;
      background-color: #e1251b;
      line-height: 45px;
      text-align: center;
      color: #fff;
      font-size: 14px;
      font-weight: bold;
    }

    .nav {
      a {
        height: 45px;
        margin: 0 22px;
        line-height: 45px;
        font-size: 16px;
        color: #333;
      }
    }

    .sort {
      position: absolute;
      left: 0;
      top: 45px;
      width: 210px;
      height: 461px;
      position: absolute;
      background: #fafafa;
      z-index: 999;

      .all-sort-list2 {
        .item {
          h3 {
            line-height: 30px;
            font-size: 14px;
            font-weight: 400;
            overflow: hidden;
            padding: 0 20px;
            margin: 0;

            a {
              color: #333;
							text-decoration: none;
            }
          }

          .item-list {
            display: none;
            position: absolute;
            width: 734px;
            min-height: 460px;
            background: #f7f7f7;
            left: 210px;
            border: 1px solid #ddd;
            top: 0;
            z-index: 9999 !important;

            .subitem {
              float: left;
              width: 650px;
              padding: 0 4px 0 8px;

              dl {
                border-top: 1px solid #eee;
                padding: 6px 0;
                overflow: hidden;
                zoom: 1;

                &.fore {
                  border-top: 0;
									a{
										text-decoration: none;
										&:hover{
											color: #e1251b;
											font-weight:700;
										}
									}
                }

                dt {
                  float: left;
                  width: 54px;
                  line-height: 22px;
                  text-align: right;
                  padding: 3px 6px 0 0;
                  font-weight: 700;
                }

                dd {
                  float: left;
                  width: 415px;
                  padding: 3px 0 0;
                  overflow: hidden;

                  em {
                    float: left;
                    height: 14px;
                    line-height: 14px;
                    padding: 0 8px;
                    margin-top: 5px;
                    border-left: 1px solid #ccc;
                  }
                }
              }
            }
          }

          &:hover {
						h3{
							background-color: #e1251b;
							a{
								color: white;
							}
						}
            .item-list {
              display: block;
            }
          }
        }
      }
    }
  }
}
</style>